Anatomy of the supraventricular crest in human hearts

• Autorzy: Wafae N. , Menegucci D. , Wafae G. C. , Ruiz C. R.
• Języki publikacji: EN

Abstrakty

EN

The supraventricular crest is a fleshy trabecula of the right ventricle that has an important function in guiding the blood flow. However, controversy persists regarding its anatomical constitution. In this study, we aimed to investigate its frequency, formation, termination, morphometry, and relationships with the septomarginal trabecula, septal papillary muscle, right atrioventricular ring, and left posterior semilunar valve of the pulmonary trunk valve. Our material consisted of 50 hearts from adult individuals of both sexes that had been preserved in 10% formalin. They were opened along the arterial cone by means of an incision starting at the pulmonary trunk and ending at the right margin. The supraventricular crest was always present. The marginal (right) extremity was formed by two to six muscle bundles that joined together (88%). On the septal (left) side, the single muscle bundle penetrated the interventricular septum directly (88%) or by means of two or three divisions (12%). It could form a septal band (52%) and could pass over the septal papillary muscle (43.5%) or just below it (34.8%). There was a relationship of muscle fibres between these two structures in 64% of cases. Dissection of the septal band demonstrated continuity with the septomarginal trabecula (46%). In 80% of cases, the crest was connected to the right atrioventricular ring and it participated in its outline directly (64%) or by means of muscle expansions (16%). Its muscle fibres bordered the left semilunar valve of the pulmonary valve in 50% of cases. Regarding morphometry, we observed that the length varied little with increasing weight of the heart (22.6%), but the height and width increased markedly with increasing weight of the heart. (Folia Morphol 2010; 69, 1: 42–46)

Słowa kluczowe

EN

anatomy; supraventricular crest; human heart; heart; morphology; circulatory system

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2010
• Tom: 69
• Numer: 1
• Opis fizyczny: p.42-46,fig.,ref.

Twórcy

autor

Wafae N.

• Universidade do Oeste Paulista, UNOESTE, Estado de Sao Paulo, Brasil

autor

Menegucci D.

• Universidade do Oeste Paulista, UNOESTE, Estado de Sao Paulo, Brasil

autor

Wafae G. C.

• Universidade Nove de Julho, UNINOVE, Sao Paulo, Brasil

autor

Ruiz C. R.

• Centro Universitário Sao Camilo, 34 Ipiranga, Sao Paulo, SP, Brasil

Bibliografia

• 1. Adachi I, Seale A, Uemura H, McCarthy KP, Kimberley P, Ho SY (2009) Morphologic spectrum of truncal valvar origin relative to the ventricular septum: correlation with the size of ventricular septal defect. J Thorac Cardiovasc Surg, 138: 1283–1289.
• 2. Anderson RH, Wilkinson JL, Arnold R, Lubkiewicz K (1974) Morphogenesis of bulboventricular malformations I. Consideration of embryogenesis in the normal heart. Br Heart J, 36: 242–255.
• 3. Anderson RH, Ho SY (1997) Anatomy of the atrioventricular junctions with regard to ventricular preexcitation. Pacing Clin Electrophisiol, 20 (8 Part 2): 2072–2076.
• 4. Anderson RH, Becker AE, Van Mierop LHS (1977) What should we call the “crista”? Br Heart J, 39: 856–859.
• 5. Becker AE, Connor M, Anderson RH (1975) Tetralogy of Fallot: a morphometric and geometric study. Am J Cardiol, 35: 402–412.
• 6. Brandt W (1953) Structure and function of the infundibulo-ventricular crest (crista supraventricularis) of the human heart. Acta Anat, 18: 202–207.
• 7. Dean JW, Ho SY, Rowland E, Mann J, Anderson RH (1986) Clinical anatomy of the atrioventricular junctions. J Am Coll Cardiol, 24: 1725–1731.
• 8. Goor DA, Edwards JE., Lillehei CW (1970) The development of the interventricular septum of the human heart. Chest, 58: 453–467.
• 9. James TN (1985) Anatomy of the crista supraventricularis: its importance for understanding right ventricular function, right ventricular infarction and related conditions. J Am Coll Cardiol, 6: 1083–1095.
• 10. Kosinski A, Nowinski J, Kozlowski D, Piwko G, Kuta W, Grzybiak M (2007) The crista supraventricularis in the human heart and its role in the morphogenesis of the septomarginal trabecula. Ann Anat, 189: 447–456.
• 11. Meredith MA, Hutchins GM, Moore GW (1979) Role of the left interventricular sulcus in formation of the interventricular septum and crista supraventricularis in normal human cardiogenesis. Anat Rec, 194: 417–428.
• 12. Muñoz CL, Vasquéz MA (1980) The supraventricular crest in congenital infundibular cardiopathies. Arch Inst Cardiol Mex, 50: 639–647.
• 13. Rosenquist GC, Sweeney LJ, Stemple DR, Christianson SD, Rowe RD (1973) Ventricular septal defect in tetralogy of Fallot. Am J Cardiol, 31: 749–754.
• 14. Wolff CF (1913) Acta Academiae Scientiarum Imperialis Petropolitanae. Anatomie des Herzens. Gustav Fischer, Jena.
• 15. Testut L, Latarjet A (1951) Tratado de anatomia humana. Vol. 2. Salvat Editores, Barcelona.
• 16. Van Praagh R, Van Praagh S (1965) The anatomy of common aorticopulmonary trunk (truncus arteriosus communis) and its embryologic implications. Am J Cardiol, 16: 406–425.